Fine, Handmade Musical Instruments

SimpleBass EX

5/6 Strings, Fretted or Fretless

Scale 850 mm

20″ Fingerboard Radius

D – Neck Shape

Passive Single Coil or Humbucker, SimpleBass, Tesla or Aguilar Amplification Pickups

SimpleBass or Aguilar Amplification Active 2/3 band EQ or Passive tone control

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SimpleBass Fusion

4/5/6 Strings, Fretted or Fretless

Scale 850 mm

20″ Fingerboard Radius

D – Neck Shape

Passive Single Coil or Humbucker, SimpleBass, Tesla or Aguilar Amplification Pickups

SimpleBass or Aguilar Amplification Active 2/3 band EQ or Passive tone control

Product Gallery

SimpleBass e4

4 Strings, Fretted or Fretless

Scale 850 mm

20″ Fingerboard Radius

D – Neck Shape

Passive Single Coil or Humbucker, SimpleBass, Tesla or Aguilar Amplification Pickups

Passive tone control

SimpleBass @

Electric Upright Bass

4 or 5 Strings

104 Cm Scale

Piezo pickup with active preamp

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Chromatone Guitars

Scale 25.5″

Humbucker Pickup

Passive tone control

3 way selector

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SimpleBass EX 5 fretless
SimpleBass EX 5 fretted
SimpleBass @ 5

a wonderful combination of design, ergonomics and great sound
that’s simply my bass!

Ares Tavolazzi

Chromatone Guitars

Every time I play my Chromatone I’m amazed about his powerful sound
this guitar it’s so light and easy to play
the neck and the fingerboard are extremely fast
I love it!

Mattia Giovannetti

SimpleBass EX 6

SimpleBass EX 5

It’s always a pleasure to play with this great instruments
my SimpleBass EX are very easy to play
with an amazing neck and a great sound
what to say more!

this is my Bass

Michele Guaglio

SimpleBass Fusion 6 fretless

SimpleBass sounds great! I like the ergonomics of the instrument, the fingerboard and the versatile timbre.
A wonderful instrument, my SimpleBass!

Aldo Mella

Aldo Mella & Youlook - SimpleBass Fusion 6 Fretless

SimpleBass EX 6

It has been a pleasure to cooperate to the design and the fine tuning of the SimpleBass EX
Roberto is always listening and looking to find new ideas and solutions

SimpleBass, as simple as I like

Carmelo Isgrò

SimpleBass Fusion 5

My SimpleBass is extremely versatile and lightweight
with an unbelievable neck and a powerful sound

Gianni Gadau

Copertina SM2014-lr

Strumenti Musicali - Dec 2014

SimpleBass® EX 6 Strings

with Aguilar Amplification® pickups and Electronics:

Euro/USD 2200

with SimpleBass or Tesla® pickups:

Euro/USD 1850


SimpleBass® EX 5 Strings

with Aguilar Amplification® pickups and Electronics:

Euro/USD 1850

with SimpleBass or Tesla® pickups:

Euro/USD 1650

SimpleBass® Fusion 6 Strings

with Aguilar Amplification® pickups and Electronics:

Euro/USD 2200

with SimpleBass or Tesla® pickups

Euro/USD 1850


SimpleBass® Fusion 5 Strings

with Aguilar Amplification® pickups and Electronics:

Euro/USD 1850

with SimpleBass or Tesla® pickups:

Euro/USD 1650


SimpleBass® Fusion 4 Strings

with Aguilar Amplification® pickups and Electronics:

Euro/USD 1650

with SimpleBass or Tesla® pickups:

Euro/USD 1500

SimpleBass® e4

with Aguilar Amplification® pickups and Electronics:

Euro/USD 1400

with SimpleBass or Tesla® pickups:

Euro/USD 1300

SimpleBass® @ 4 Strings

Euro/USD 1950

SimpleBass® @ 5 Strings

Euro/USD 2150

Chromatone Guitars®

Euro/USD 1500

You can find SimpleBass and Chromatone Guitars here:

Via Catilina 17a
28045, Inviorio (NO), Italy
tel +39 327 2911997

SimpleBass® is an idea developed after more than 20 years of experience as a bass player. The first project I had developed was the creation of an electric double bass with the scale of a bass guitar. This was the SimpleBass® EBU, an instrument designed for electric bass players who want to find the sound of the double bass. The SimpleBass® EBU uses the “long scale” strings from the regular electric bass, much cheaper than the double bass strings, the scale is 850 mm and allows the player to keep the typical electric bass fingerings.

SimpleBass® Electric was developed starting from another need, for 20 years I played a fretless Jazz Bass, I then tried other bass models with 5 and 6 strings, but then I always was back playing my “old friend”, the Jazz Bass.
But with the Jazz Bass I always missed the extension, having some more frets space would have been an real help for play themes or for have a better extension during the improvisation.
So, I started to think about an instrument that maintains the basic features of a Jazz Bass, slim neck, passive electronics, but with many more frets.
After working on the design, where my focus was to make a clean shape, the concept was: “remove what you don’t need”, I started to work on the first prototype, I had to solve several technical problems, especially because the length of the neck.
After the SimpleBass® Electric I’ve developed other models, the SimpleBass® Fusion, the SimpleBass® EX and the SimpleBass® @.
Early in 2014 I’ve developed a project for a guitar.
Chromatone Guitars® is the new brand actually in production.
All SimpleBass® models and the Chromatone Guitars® are extremely well balanced, the neck and the flat fingerboard are its strength along with the powerful sound, the goal of my research is to create an instrument where the sound is coming mostly from the musician.
The wood is selected from time to time according to the availability. Each instrument produced is unique and unrepeatable, this is extraordinary thing about handmade musical instruments.

The SimpleBass® models now available are:
SimpleBass® Electric – 4 Strings Fretless
SimpleBass® Fusion – 4, 5, 6 Strings Fretted or Fretless
SimpleBass® EX – 4, 5, 6 Strings Fretted or Fretless
SimpleBass® @ a full scale Electric Upright Bass 4 or 5 strings developed in cooperation with Ares Tavolazzi.
Cromatone Guitars®

Thank you for visiting SimpleBass and Chromatone Guitars web site!
For any question, please contact me
Roberto Musso

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